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Configuring screen savers

Created by Tim Crumley, last modified on Jan 14, 2026

You must prevent your screen saver from launching during calibration and interfering with measurement.

Choose Apple > System Settings.
Go to Apple > System Settings > Screen Saver.
Select a screen saver.
Go to Apple > System Settings > Lock Screen.
Change the drop-down in Start Screen Saver when inactive to 30 minutes or longer.

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